Will these skirts block access to the jack points?

No. Verify your vehicle's jack point locations before installation and ensure the skirt mounting allows clearance for lifting equipment. The two-piece design gives you control over final positioning on each side.

Do I need to paint these before or after installation?

Either approach works. Many builders prefer to sand, prime, and paint the panels on the bench before bolting them down — it's faster and gives cleaner results. You can also install them first and finish them in place. Sand the surface thoroughly before applying primer and paint.

What's the best way to prep FRP before painting?

Sand the entire surface to promote adhesion and remove any release agent residue from the mold. After sanding, wipe with a clean cloth and allow the surface to dry completely. Then apply your chosen primer and topcoat. The skirts arrive ready for this prep work.